The minimalist approach (poker dedicated computer)

[Pog0]

So I'm thinking of making a strictly poker dedicated computer to avoid any unnecessary crashes or other problems.

Other than all the programs necessary for poker, what would you recommend I install on the machine? For example: Memory management, anti-virus, firewalls. What OS would be best / most stable?

What kind of specs are required to run up to 16 tables in 2 sites with hud, tracker, SS, aggregator, etc. Would there be any reason to avoid datamining on the same machine?

I'd probably run 2 WFP3007s or one with a sideways 20" monitor (don't want any risk of issues with 2 video cards and more monitors).

Any advice in this matter would be greatly appreciated. The goal is essentially to maximize performance with no unnecessary costs (I already have monitors).